Credit: herzogbr. 
Find your members of Congress  and track their votes .
Project VoteSmart  – Access information about politicians’ voting records, issue positions, campaign finance and other indicators.
Senate Explained  – A resource for questions related to Senate practices and procedures.
House Explained  – A resource for questions related to House practices and procedures.
How Our Laws Are Made  – A primer on lawmaking from the Library of Congress.
Congressional Budget Office  – Produces cost estimates and other analyses for legislation.
Government Accountability Office  – Produces investigative reports and other analyses of government performance and accountability.
Thomas  – An online catalog of full-text legislation and other resources for researching policy issues.
House Documents  –A resource for obtaining House bills, resolutions, committee reports and other documents in print or online.
Senate Documents  – A resource for obtaining Senate bills, resolutions, committee reports and other documents in print or online.
Preparing for Policy Interaction
Communicating Science  – A partnership between AAAS and NSF to provide scientists and engineers with resources for communicating scientific ideas, concepts and needs to people outside the field, including policymakers.
How-to Video  for scientists preparing to meet with congressmen (American Chemical Society).
Science TED Talks  offer examples of how to present complex science to a general audience.